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E. W. ROBERTS.

PRIMING CUP.

APPLlCATlON FILED JUNE 1, 1915.

Patented Aug. 8, 1916.

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r r on EARL W. ROBERTS, OF DETROIT, MICHIGAN, ASSIGNOR TO THE ROBERTSBRASS MFG.

(10., OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

PRIMING-CUP.

Application filed June 7, 1915.

To all whom it may concern:

Be it known that I, EARL W. ROBERTS, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inPriming-Cups, of which the following is a specification, reference beinghad therein to the accompanying drawings.

The invention relates to priming cups for engines and has among theobjects thereof to provide a valve-controlled priming cup which has aclosure that is opened upon the opening of the valve and closed upon theclosing of the valve; to provide such a type of valve-controlled primingcup that may be easily and cheaply manufactured; to provide a structureby which the open position of the valve will be indicated.

Other objects of the invention will more fully hereinafter appear.

The invention resides in the peculiar construction, arrangement andcombination of parts as hereinafter set forth and particularly pointedout in the claims.

In the drawings, Figure 1 is a perspective view of the priming cupembodying the invention; Fig. 2 is a similar view showing the valve inopen position; Fig. 3 is a longitudinal, central section; and Fig. 4 isa section on the line wcc of Fig. 3.

Referring to the one embodiment of the invention shown in the drawing, Adesignates the casing of the priming cup and B the cup proper, arrangedat the upper end of the casing. Extending through the casing andcommunicating with the cup is a passage or conduit C, the passage in thestructure illustrated extending longitudinally of the casing.

D is a valve controlling the passage C, the valve being herein shown asof the conical type, and E is a handle for actuating the valve to openand close the passage C by moving the port a of the valve into and outof registration with the passage.

It is found that if a closure is not provided for the cup, dirt, dust,grit and the like will collect in the cup, and when the priming liquidis poured into the cup the dirt, grit, etc., will be carried into thecylinder, which as will be readily appreciated, is objectionable. I havetherefore, provided the cup with a closure, and in order to simplify theoperation of priming, connect the Specification of Letters Patent.

Patented Aug. 8, 1916.

Serial No. 32,534.

closure so that it will be opened upon the openlng ofthe valve andclosed upon the closing of the valve.

Referring more in detail to the particular construction shown in thedrawings, which while a novel and very desirable form, is only oneembodiment of the invention, G is the closure for the cup, in the formof a flat disk, and II is an arm extending laterally inward from thehandle and carrying the disk. In the structure shown, the handle, diskand arm are formed of one piece, thereby permitting these parts to bestamped from a flat blank. As will be noticed upon reference to Fig. 2,the upper edge I of the cup is in a plane slanting in relation to thelongitudinal aXis of the casing, and the closure is correspondinglyarranged. This allows the olosure to be brought tightly into engagementwith the upper edge of the cup upon a movement of the handle to closethe valve. By properly twisting the arm the disk may be caused toaccurately seat upon the edge I.

With the structure so far described, when the valve is closed as shownin Fig. 1, the closure will seal the upper end of the valve, and whenthe handle is moved to open the valve the closure will be removed fromthe cup.

In the type of valve illustrated, it is de sirable to indicate the openposition of the valve. This I have accomplished without the addition ofany parts. Thus the valve has a stem J that projects without the easingand upon which is sleeved a pair of washers K and L. Between thesewashers is arranged a spring M that is coiled upon the stem.

N is a cotter pin for limiting the outward movement of the washer K.This manner of holding the conical valve toits seat is usually employedin priming cups. The stem, however, is flat upon opposite sides and theopening O of the washer L is provided with flat portions P so that thewasher will turn with the stem. Upon the inner face of the washer L is aprojection Q which is adapted to engage a recess R in the casing whenthe valve is in open position, thereby indicating to the operator whenthe handle has been moved far enough to open the valve. Preferably twoof these projections Q. are employed upon the collar at diametricallyopposite points, and in such case two recesses R are formed in the sideof the casing. In order to allow the Washer to seat tightly against thecasing at the end of the valve when the latter is closed, recesses S areprovided for receiving the projections Q in the closed position of thevalve.

From the foregoing description it will be readily apparent that thestructure is one which not only may be easily and cheaply manufactured,but provides very convenient means of closing the cup When the valve isnot in use.

What I claim as my invention is:

1. I11 a priming cup, the combination'of a casing having a passagetherein, a cup on the casing communicating with the passage, a valve inthe casing controlling the passage, a closure for the cup, and a rigidconnection between the closure and the valve for effecting the openingand closing of the closure upon the opening and closing of the valverespectively.

2. In a priming cup, the combination of a casing having a passagetherein, a cup on the casing communicating with the passage,

a valve in the casing controlling the passage, a closure for the cup,and a connection be tween the closure and the valve for simultaneous'lydisplacing the same from their closed to their open position and viceversa.

3. In a priming cup, the combination With a casing having a passagetherein, of a cup upon the casing having the outer edge thereof in aplane slanting to the longitudinal axis of the casing, a valve Withinthe casing controlling said passage, a handle for said. valve, havingrigid connection therewith, and a disk closure for said cup carried bysaid handle.

4:. In a priming cup, the combination with a casing, having a passagetherein, a cup on the casing communicating with said passage, a valve inthe casing controlling the passage, a closure for the cup, and aconnection between the closure and valve for displacing the same about acommon axis from their closed to their openpositions and vice versa.

In testimony whereofI afiix my signature.

EARL W. ROBERTS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

